1/*
  2 * (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
  3 * See LICENSE file for license details.
  4 */
  5#include "dwm.h"
  6
  7#include <stdio.h>
  8#include <string.h>
  9#include <X11/Xlocale.h>
 10
 11/* static functions */
 12
 13static void
 14drawborder(void)
 15{
 16	XPoint points[5];
 17	XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
 18	XSetForeground(dpy, dc.gc, dc.border);
 19	points[0].x = dc.x;
 20	points[0].y = dc.y;
 21	points[1].x = dc.w - 1;
 22	points[1].y = 0;
 23	points[2].x = 0;
 24	points[2].y = dc.h - 1;
 25	points[3].x = -(dc.w - 1);
 26	points[3].y = 0;
 27	points[4].x = 0;
 28	points[4].y = -(dc.h - 1);
 29	XDrawLines(dpy, dc.drawable, dc.gc, points, 5, CoordModePrevious);
 30}
 31
 32static unsigned int
 33textnw(char *text, unsigned int len)
 34{
 35	XRectangle r;
 36	if(dc.font.set) {
 37		XmbTextExtents(dc.font.set, text, len, NULL, &r);
 38		return r.width;
 39	}
 40	return XTextWidth(dc.font.xfont, text, len);
 41}
 42
 43static void
 44drawtext(const char *text, Bool invert, Bool border)
 45{
 46	int x, y, w, h;
 47	unsigned int len;
 48	static char buf[256];
 49	XGCValues gcv;
 50	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 51
 52	XSetForeground(dpy, dc.gc, invert ? dc.fg : dc.bg);
 53	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 54
 55	w = 0;
 56	if(border)
 57		drawborder();
 58
 59	if(!text)
 60		return;
 61
 62	len = strlen(text);
 63	if(len >= sizeof(buf))
 64		len = sizeof(buf) - 1;
 65	memcpy(buf, text, len);
 66	buf[len] = 0;
 67
 68	h = dc.font.ascent + dc.font.descent;
 69	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
 70	x = dc.x + (h / 2);
 71
 72	/* shorten text if necessary */
 73	while(len && (w = textnw(buf, len)) > dc.w - h)
 74		buf[--len] = 0;
 75
 76	if(w > dc.w)
 77		return; /* too long */
 78
 79	gcv.foreground = invert ? dc.bg : dc.fg;
 80	gcv.background = invert ? dc.fg : dc.bg;
 81	if(dc.font.set) {
 82		XChangeGC(dpy, dc.gc, GCForeground | GCBackground, &gcv);
 83		XmbDrawImageString(dpy, dc.drawable, dc.font.set, dc.gc,
 84				x, y, buf, len);
 85	}
 86	else {
 87		gcv.font = dc.font.xfont->fid;
 88		XChangeGC(dpy, dc.gc, GCForeground | GCBackground | GCFont, &gcv);
 89		XDrawImageString(dpy, dc.drawable, dc.gc, x, y, buf, len);
 90	}
 91}
 92
 93/* extern functions */
 94
 95void
 96drawall()
 97{
 98	Client *c;
 99
100	for(c = clients; c; c = getnext(c->next))
101		drawtitle(c);
102	drawstatus();
103}
104
105void
106drawstatus()
107{
108	int i;
109	Bool istile = arrange == dotile;
110
111	dc.x = dc.y = 0;
112	dc.w = bw;
113	drawtext(NULL, !istile, False);
114
115	dc.w = 0;
116	for(i = 0; i < TLast; i++) {
117		dc.x += dc.w;
118		dc.w = textw(tags[i]);
119		if(istile)
120			drawtext(tags[i], (i == tsel), True);
121		else
122			drawtext(tags[i], (i != tsel), True);
123	}
124	if(sel) {
125		dc.x += dc.w;
126		dc.w = textw(sel->name);
127		drawtext(sel->name, istile, True);
128	}
129	dc.w = textw(stext);
130	dc.x = bx + bw - dc.w;
131	drawtext(stext, !istile, False);
132
133	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
134	XFlush(dpy);
135}
136
137void
138drawtitle(Client *c)
139{
140	int i;
141	Bool istile = arrange == dotile;
142
143	if(c == sel) {
144		drawstatus();
145		XUnmapWindow(dpy, c->title);
146		XSetWindowBorder(dpy, c->win, dc.fg);
147		return;
148	}
149
150	XSetWindowBorder(dpy, c->win, dc.bg);
151	XMapWindow(dpy, c->title);
152
153	dc.x = dc.y = 0;
154
155	dc.w = 0;
156	for(i = 0; i < TLast; i++) {
157		if(c->tags[i]) {
158			dc.x += dc.w;
159			dc.w = textw(c->tags[i]);
160			drawtext(c->tags[i], !istile, True);
161		}
162	}
163	dc.x += dc.w;
164	dc.w = textw(c->name);
165	drawtext(c->name, !istile, True);
166	XCopyArea(dpy, dc.drawable, c->title, dc.gc,
167			0, 0, c->tw, c->th, 0, 0);
168	XFlush(dpy);
169}
170
171unsigned long
172getcolor(const char *colstr)
173{
174	XColor color;
175	Colormap cmap = DefaultColormap(dpy, screen);
176
177	XAllocNamedColor(dpy, cmap, colstr, &color, &color);
178	return color.pixel;
179}
180
181void
182setfont(const char *fontstr)
183{
184	char **missing, *def;
185	int i, n;
186
187	missing = NULL;
188	setlocale(LC_ALL, "");
189	if(dc.font.set)
190		XFreeFontSet(dpy, dc.font.set);
191	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
192	if(missing) {
193		while(n--)
194			fprintf(stderr, "missing fontset: %s\n", missing[n]);
195		XFreeStringList(missing);
196		if(dc.font.set) {
197			XFreeFontSet(dpy, dc.font.set);
198			dc.font.set = NULL;
199		}
200	}
201	if(dc.font.set) {
202		XFontSetExtents *font_extents;
203		XFontStruct **xfonts;
204		char **font_names;
205
206		dc.font.ascent = dc.font.descent = 0;
207		font_extents = XExtentsOfFontSet(dc.font.set);
208		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
209		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
210			if(dc.font.ascent < (*xfonts)->ascent)
211				dc.font.ascent = (*xfonts)->ascent;
212			if(dc.font.descent < (*xfonts)->descent)
213				dc.font.descent = (*xfonts)->descent;
214			xfonts++;
215		}
216	}
217	else {
218		if(dc.font.xfont)
219			XFreeFont(dpy, dc.font.xfont);
220		dc.font.xfont = NULL;
221		dc.font.xfont = XLoadQueryFont(dpy, fontstr);
222		if (!dc.font.xfont)
223			dc.font.xfont = XLoadQueryFont(dpy, "fixed");
224		if (!dc.font.xfont)
225			eprint("error, cannot init 'fixed' font\n");
226		dc.font.ascent = dc.font.xfont->ascent;
227		dc.font.descent = dc.font.xfont->descent;
228	}
229	dc.font.height = dc.font.ascent + dc.font.descent;
230}
231
232unsigned int
233textw(char *text)
234{
235	return textnw(text, strlen(text)) + dc.font.height;
236}